硬性策略质量门禁 validate_strategy()

新增 STRATEGY_QUALITY_GATES 检查清单（9条红线）：
CRITICAL: 止损/止盈存在+>0, 买入区下沿<上沿
HIGH: 止损≤买入区, 买入推荐含RR≥1.5, 港股标currency=HKD
MEDIUM: signal短词, tech_snapshot含技术位

enforce_strategy_quality() 插在写入链的两处：
1. reassess_with_context() return前 → 单只重评必过
2. regenerate_all() for d in decisions: 写DB前 → 批量重评必过

不过的：status=review_needed, signal降级→信号不充分
不会写进DB/JSON，除非修复了CRITICAL问题

technical_analysis.py

@@ -390,15 +390,15 @@ def full_analysis(code):
 
     result = {
         "quote": {
-            "name": q["name"],
+            "name": q.get("name", code),
             "price": q["price"],
-            "change_pct": q["change_pct"],
-            "open": q["open"],
-            "high": q["high"],
-            "low": q["low"],
-            "close_yest": q["close_yest"],
-            "volume": q["volume"],
-            "amplitude": q["amplitude"],
+            "change_pct": q.get("change_pct", 0),
+            "open": q.get("open", 0),
+            "high": q.get("high", 0),
+            "low": q.get("low", 0),
+            "close_yest": q.get("close_yest", 0),
+            "volume": q.get("volume", 0),
+            "amplitude": q.get("amplitude", 0),
         },
         "support_resistance": sr,
         "candlestick": candle,